摘要
Solidification curve of Al 8.5Fe 1.7Si was calculated by thermodynamic models. Phase constitutions of Al 8.5Fe, Al 8.5Fe 1.7Si and Al 8.5Fe 1.7Si 1.3V alloys were analysed at different cooling rates by means of optical microscopy, X ray diffraction, transmission electron microscopy and so on. Microstructures of spraying deposited ingots and their hot processed samples were detected, and the phase transitions during spraying deposition, heating process and hot processing were also studied. The results show that, by spraying deposition, the ideal structures of α (Al) and Al 12 (Fe, V) 3Si can be obtained when cooling rate is above 10 5 K/s; and restraining the formation of Al 8(Fe,V) 2Si/Al 13 Fe 4 can improve the properties of the alloy.
Solidification curve of Al 8.5Fe 1.7Si was calculated by thermodynamic models. Phase constitutions of Al 8.5Fe, Al 8.5Fe 1.7Si and Al 8.5Fe 1.7Si 1.3V alloys were analysed at different cooling rates by means of optical microscopy, X ray diffraction, transmission electron microscopy and so on. Microstructures of spraying deposited ingots and their hot processed samples were detected, and the phase transitions during spraying deposition, heating process and hot processing were also studied. The results show that, by spraying deposition, the ideal structures of α (Al) and Al 12 (Fe, V) 3Si can be obtained when cooling rate is above 10 5 K/s; and restraining the formation of Al 8(Fe,V) 2Si/Al 13 Fe 4 can improve the properties of the alloy.
出处
《中国有色金属学会会刊：英文版》
CSCD
2003年第3期568-573,共6页
Transactions of Nonferrous Metals Society of China
基金
Project(G19990 64 90 0 )supportedbytheNationalKeyFundamentalResearchandDevelopmentProgramofChina
